What is the inheritance pattern for Huntington chorea?
A: Mitochondrial disease
B: Autosomal recessive
C: Autosomal dominant
D: X-linked
A: Mitochondrial disease
B: Autosomal recessive
C: Autosomal dominant
D: X-linked
举一反三
- In human, color blindness is caused by sex linked recessive genes, while blue eye is caused by autosomal recessive genes. A blue eyed woman whose father is color blind marries a brown eyed man whose mother is blue eyed. How many of their sons are blue eyed? ( ) A: 1/2 B: 1/3 C: 1/4 D: 3/4
- A 35-year-old man is awakened at night because of severe lower abdominal pain that radiates to the groin. The pain is very intense and comes in waves. The next morning， he notices blood in his urine. On examination， there are no remarkable findings. Which of the following is the most likely diagnosis？（ ） A: Acute cystitis B: Renal cell carcinoma C: Ureteral lithiasis D: Hydronephrosis E: Autosomal dominant polycystic kidney disease
- A heritable trait with two different forms (dominant and recessive) is known as A: an allele. B: a genotype. C: a phenotype. D: a gene.
- Which of the following inherited disease only inherited from mother? <br/>() A: Single-gene disorder B: Polygenic disorder C: Chromosome disorder D: Mitochondrial disease
- A unit of heredity with two or more different forms (usually dominant and recessive) is known as A: an allele. B: a genotype. C: a phenotype. D: a gene.